There were 87 license violations cited and at least 50 IDs confiscated during the raid, Sgt. Joel Cordone said. Another 46 citations were issued to underage drinkers for possession of alcohol with the intent to consume, Cordone said.

In addition to patrons being cited, four bartenders were also charged with selling alcohol to people under 21 and for unlawfully dealing with a child, both misdemeanors.

Maggie's was specifically targeted because complaints of underage drinking at the bar had been made by citizens, Cordone said said.

"We had a lot of complaints," Cordone said.

More bar raids are planned, Cordone said, but he declined to specify when or where.

The last raid under the Operation Prevent were Oct. 26, 2007, when authorities went into two Hill bars to check identifications.

In 2003, the year Operation Prevention began, Maggie's was targeted in an Operation Prevent raid that netted 67 fake or altered driver's licenses.